摘要:
An inexpensive rotary grinding tool with reduced noise level of the grinding is provided. The rotary grinding tool comprises a metal disk having a grinding surface on at least a part of its surface and a holder for supporting the metal disk. The grinding surface has hard grains having a Mohs hardness in excess of 9 brazed thereon at a surface density of at least 20 grains/cm2. The holder has at its center a securing means for securing the holder on rotary shaft of a rotary drive unit. The holder and the metal disk are joined together to constitute the rotary grinding tool.
摘要翻译:提供了具有降低的磨削噪音水平的廉价的旋转磨削工具。 旋转研磨工具包括在其表面的至少一部分上具有研磨表面的金属盘和用于支撑金属盘的保持器。 磨削表面具有以至少20个/ cm 2的表面密度在其上钎焊的莫氏硬度超过9的硬质粒。 保持器在其中心具有用于将保持器固定在旋转驱动单元的旋转轴上的固定装置。 保持器和金属盘连接在一起以构成旋转研磨工具。
摘要:
Double-stranded RNA synthesized using native human DNA as template is found to be an excellent interferon inducer with low toxicity in spite of homologous native to host cell. It is produced by reacting ATP, GTP, CTP and UTP with one another in the presence of a native human DNA as template by the catalytic action of an active RNA polymerase to form RNA and subjecting the resulting RNA to annealing by heating it at a temperature of 70.degree. to 100.degree. C. and gradually cooling to room temperature or below to form double-stranded regions between their molecules.
摘要:
Disclosed is a coated-product with marking. The coated-product is obtained by the steps of forming a coating layer having brightness higher than the brightness of a bare surface of a molding on the surface of the molding made of resin colored with dye, and removing a predetermined portion of the coating layer by laser marking and exposing the bare surface of the coated-product to form a marking portion.
摘要:
The present invention provides metal fine particles which have selective wavelength absorption characteristics in a wavelength region from visible light to near infrared light, and have sharp absorption characteristics, and influences little the surrounding wavelength, and therefore, they yield tones having high chroma. The present invention provides metal fine particles wherein an aspect ratio is in a range from 1.1 to 8.0, a maximum absorption wavelength in plasmon absorption is in a range from 400 nm to 1,200 nm, and an absorption coefficient at a peak position of the maximum absorption wavelength is in a range from 6,000 to 20,000 L/mol·cm (measurement concentration: 1.6×10−4 mol/L, and solvent: water).
摘要:
It is an object of the present invention to provide an anticorrosive coating composition which uses a pollution-free (heavy metal-free) rust preventive pigment and exhibits anticorrosive performances equal or superior to those of lead compounds or chromic acid compounds even if the pigment is blended in various binder resins and also to provide an anticorrosive coating composition having excellent storage stability. The present invention relates to an anticorrosive coating composition comprising a binder resin and a pollution-free (heavy metal-free) rust preventive pigment containing a condensed calcium phosphate produced by baking a single substance or mixture of a calcium component and a phosphorous component in the following atomic ratio (Ca/P=m): 0.50
摘要翻译:本发明的目的是提供一种防污涂料组合物,其使用无污染(不含重金属)防锈颜料,并且即使颜料是颜料,也表现出与铅化合物或铬酸化合物相同或优于其的抗腐蚀性能 混合在各种粘合剂树脂中,并且还提供具有优异的储存稳定性的防腐涂料组合物。 本发明涉及一种防腐涂料组合物,其包含粘合剂树脂和无污染(无重金属)防锈颜料,其含有通过在其中焙烧单一物质或钙组分和磷组分的混合物而制备的浓缩磷酸钙 原子比(Ca / P = m):0.50
摘要:
A highly durable repair-coating method is provided, which permits the simple, fast, efficient and effective removal of thick rust and fixed rust generated on a steel structure having a large area such as a bridge and an intermediate iron product, under storage, which can ensure high working properties and high safety while reducing the processing cost, and which can likewise ensure high quality repairing and the subsequent improved duration of the repaired and coated articles.The method is for highly durable repair-coating of a coated or coating-free steel structure which comprises the steps of conditioning the ground of the coated or coating-free steel structure such that the rate of exposed surface area of the ground is not less than 60%; and then applying an aqueous solution of sodium carbonate having a concentration of not less than 5 g/L and not more than 500 g/L, as a prior processing solution; and further optionally applying a highly corrosion-resistant zinc powder-containing composition which comprises 100 parts by mass of a binder resin (the solid content by mass); 200 to 800 parts by mass of zinc powder; 1 to 95 parts by mass of a corrosive ion-fixing agent; and 200 to 1,000 parts by mass of a solvent.
摘要:
A test cell for magnetic immunoreaction assay, comprising a polymer having a quantity of residual magnetism of 15 pT or less, when a magnetic field is applied under a magnetic field of 0.1 T, and with a distance between a sample and a SQUID sensor being set at 1.5 mm, and a method for producing the test cell are provided. A test cell for magnetic immunoreaction assay, comprising a polymer having a metal content of 30 ppb or less, and a method for producing the test cell are also provided. A magnetic signal detected from a magnetic marker to be measured is not buried in or lost to the residual magnetic signal of the test cell itself, but data discrimination can be made clearly.
摘要:
An apparatus for and a method of bonding veneers without problems in manufacturing process even if logs, which causes disorder of veneers after dried are used. The veneer bonding apparatus for bonding veneers to each other comprises: a bonding face machining device for machining both end portions of a veneer to be bonded to bonding faces; a bonding agent applying device for applying bonding agent to at least one bonding face of the machined bonding faces; an adjusting device for adjusting a front end bonding face of a succeeding veneer to a rear end bonding face of a preceding veneer such that a face side of the preceding veneer with the applied bonding agent and a backside of the succeeding veneer with the applied bonding agent are flush with each other; and a pressurizing device for pressurizing the adjusted bonding faces to each other.
摘要:
The present invention provides metal fine particles which have selective wavelength absorption characteristics in a wavelength region from visible light to near infrared light, and have sharp absorption characteristics, and influences little the surrounding wavelength, and therefore, they yield tones having high chroma. The present invention provides metal fine particles wherein an aspect ratio is in a range from 1.1 to 8.0, a maximum absorption wavelength in plasmon absorption is in a range from 400 nm to 1,200 nm, and an absorption coefficient at a peak position of the maximum absorption wavelength is in a range from 6,000 to 20,000 L/mol·cm (measurement concentration: 1.6×10−4 mol/L, and solvent: water).